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![1. Prepare
def test_de_lorean_get_people_back_to_the_future(self):
de_lorean = DeLorean()
brown, marty, jeniffer = Brown(), Marty(), Jeniffer()
de_lorean.passengers = [brown, marty, jeniffer]
de_lorean.run()
self.assertIn(brown, __future__)
self.assertIn(marty, __future__)
self.assertIn(jeniffer, __future__)](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-8-320.jpg)
![2. Run
def test_de_lorean_get_people_back_to_the_future(self):
de_lorean = DeLorean()
brown, marty, jeniffer = Brown(), Marty(), Jeniffer()
de_lorean.passengers = [brown, marty, jeniffer]
de_lorean.run()
self.assertIn(brown, __future__)
self.assertIn(marty, __future__)
self.assertIn(jeniffer, __future__)](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-9-320.jpg)
![3. Assert
def test_de_lorean_get_people_back_to_the_future(self):
de_lorean = DeLorean()
brown, marty, jeniffer = Brown(), Marty(), Jeniffer()
de_lorean.passengers = [brown, marty, jeniffer]
de_lorean.run()
self.assertIn(brown, __future__)
self.assertIn(marty, __future__)
self.assertIn(jeniffer, __future__)](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-10-320.jpg)
![TestCase.client
class HelloWorldTestCase(TestCase):
def test_hello_world_view(self):
response = self.client.get('/sample_app/hello_world/')
self.assertTemplateUsed(response, 'sample_app/hello_world.html')
self.assertEqual(response.context['message'], 'Hello World')](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-17-320.jpg)
![Can they go back to the
future?
def test_de_lorean_get_people_back_to_the_future(self):
de_lorean = DeLorean()
brown, marty, jeniffer = Brown(), Marty(), Jeniffer()
de_lorean.passengers = [brown, marty, jeniffer]
de_lorean.run()
self.assertIn(brown, __future__)
self.assertIn(marty, __future__)
self.assertIn(jeniffer, __future__)
TypeError: argument of type 'module' is not iterable
__future__](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-25-320.jpg)
![import types
import __future__
class IterableModule(types.ModuleType):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.people = []
def __iter__(self):
return iter(self.people)
class DeLorean(object):
def __init__(self):
self.passengers = []
def run(self):
future = globals()['__future__'] = IterableModule('__future__')
for passenger in self.passengers:
future.people.append(passenger)](https://image.slidesharecdn.com/howtowritetestindjango-150607022535-lva1-app6892/85/How-to-write-test-in-Django-26-320.jpg)
Uploaded byShunsuke Hida
How to write test in Django
The document discusses how to write tests in Django. It explains the basic structure of a test with three parts: prepare, run, and assert. It provides examples of testing URLs, models, views, templates, and more. Various testing tools for Django are also covered, including RequestFactory, TestCase.client, and mocking with unittest.mock. The document concludes by addressing how to make the Python built-in module __future__ iterable in order to test that passengers are sent back to the future.
How to write test in Django
- 1. How to write test ShunsukeHida 飛田 俊介 in Django
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- 8. 1. Prepare def test_de_lorean_get_people_back_to_the_future(self): de_lorean= DeLorean() brown, marty, jeniffer = Brown(), Marty(), Jeniffer() de_lorean.passengers = [brown, marty, jeniffer] de_lorean.run() self.assertIn(brown, __future__) self.assertIn(marty, __future__) self.assertIn(jeniffer, __future__)
- 9. 2. Run def test_de_lorean_get_people_back_to_the_future(self): de_lorean= DeLorean() brown, marty, jeniffer = Brown(), Marty(), Jeniffer() de_lorean.passengers = [brown, marty, jeniffer] de_lorean.run() self.assertIn(brown, __future__) self.assertIn(marty, __future__) self.assertIn(jeniffer, __future__)
- 10. 3. Assert def test_de_lorean_get_people_back_to_the_future(self): de_lorean= DeLorean() brown, marty, jeniffer = Brown(), Marty(), Jeniffer() de_lorean.passengers = [brown, marty, jeniffer] de_lorean.run() self.assertIn(brown, __future__) self.assertIn(marty, __future__) self.assertIn(jeniffer, __future__)
- 11. What can youtest?
- 12. Request Response What can youtest? urls.py Model View Template View HTML etc… url Context get, save render dispatch Data
- 13. Request Response What can youtest? urls.py Model View Template View HTML etc… url Context get, save render dispatch Data
- 14. Request Response What can youtest? urls.py Model View Template View HTML etc… url Context get, save render dispatch Data
- 15. RequestFactory class HelloWorldTestCase(TestCase): def test_hello_world_template(self): factory= RequestFactory() request = factory.get('/') response = render( request, template_name='sample_app/hello_world.html', dictionary=dict(message='hello') ) self.assertContains(response, 'hello')
- 16. Request Response What can youtest? urls.py Model View Template View HTML etc… url Context get, save render dispatch Data
- 17. TestCase.client class HelloWorldTestCase(TestCase): def test_hello_world_view(self): response= self.client.get('/sample_app/hello_world/') self.assertTemplateUsed(response, 'sample_app/hello_world.html') self.assertEqual(response.context['message'], 'Hello World')
- 18. Mock unittest.mock (new inPython 3.3)
- 19. Request Response What can youtest? urls.py Model View Template View HTML etc… url Context get, save render dispatch Data
- 20. Mock - return_value classChapter(models.Model): name = models.CharField(max_length=255) def get_name(self): return 'chapter ' + self.name ChapterView get_name
- 21. Mock - return_value @mock.patch('sample_app.models.Chapter.get_name') deftest_get_name(self, mock_get_name): mock_get_name.return_value = ‘abc' chapter = ChapterFactory() # chapter.get_name() == ‘abc’
- 22. Mock - assert_called_with @mock.patch('sample_app.models.Chapter.get_name',autospec=True) def test_chapter_get_name_is_called(self, mock_get_name): chapter = ChapterFactory() # call chapter.get_name() somewhere mock_get_name.assert_called_with( chapter, prefix='chapter ' )
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- 24. See Also Obey theTesting Goat! (Test Driven Development with Python) http://www.obeythetestinggoat.com/ Test of Django itself https://github.com/django/django/tree/ master/tests
- 25. Can they goback to the future? def test_de_lorean_get_people_back_to_the_future(self): de_lorean = DeLorean() brown, marty, jeniffer = Brown(), Marty(), Jeniffer() de_lorean.passengers = [brown, marty, jeniffer] de_lorean.run() self.assertIn(brown, __future__) self.assertIn(marty, __future__) self.assertIn(jeniffer, __future__) TypeError: argument of type 'module' is not iterable __future__
- 26. import types import __future__ classIterableModule(types.ModuleType): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.people = [] def __iter__(self): return iter(self.people) class DeLorean(object): def __init__(self): self.passengers = [] def run(self): future = globals()['__future__'] = IterableModule('__future__') for passenger in self.passengers: future.people.append(passenger)
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